Chacay Melehué, bed 19: Late/Upper Bathonian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Perisphinctidae
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Neuqueniceras (Neuqueniceras) steinmanni
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Cephalopoda
- Ammonitida
- Sphaeroceratidae
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Stehnocephalites gerthi
(Spath 1928)
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Stehnocephalites crassicostatus
Riccardi and Westermann 1991
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| (3 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Neuquen |
| Coordinates: | 37.3° South, 70.5° West (view map) | ||
| Paleocoordinates: | 34.8° South, 32.2° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| Stage: | Bathonian | 10 m.y. bin: | Jurassic 4 |
| Key time interval: | Late/Upper Bathonian | Ammonoid zone: | Lilloettia steinmanni |
| Age range of interval: | 168.20000 - 165.30000 m.y. ago |
Stratigraphy
| Formation: | Los Molles | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Stehnocephalites gerthi horizon | |||||
Lithology and environment
| Primary lithology: | lithified "shale" |
| Environment: | deep-water indet. |
| Geology comments: Record rhythmic deposition at the depocentre and shelf-edge to slope. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: Laboratorio de Paleontologia y Biocronologia (abbreviated LPB) of the Institute de Fisiografia y Geologia, Universidad Nacional de Rosario. | |
Metadata
| Database number: | 158976 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2014-07-23 22:29:29 | Last modified: | 2017-05-23 16:34:15 |
| Access level: | the public | Released: | 2014-07-23 22:29:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 52019. | H. Parent. 1998. Upper Bathonian and lower Callovian ammonites from Chacay Melehué (Argentina). Acta Palaeontologica Polonica 43:69-130 [M. Clapham/M. Clapham] |